+91 98765 43210
info@gbtprofiles.com
📍 Ranchi, Jharkhand
Mon–Sat: 9AM–6PM
FB IN YT
Engineered for Performance

Redefining Spaces with uPVC Excellence

Premium uPVC windows & door profiles designed for Indian climate — durable, stylish, and built to last a lifetime.

50+
Profile Series
3
Color Options
25yr
Durability
GBT – uPVC Window & Door Profile – Engineered for Performance
Modern living room with GBT uPVC windows
🪟 GBT uPVC Windows — installed
Brighter Spaces. Better Life.
Natural light · Energy efficient · Zero maintenance
50 Series Profile
GBT 50 Casement Series technical cross-section
☀️
UV Resistant
100% protected
🔇
Soundproof
35dB reduction
❄️
Thermal Insulated
Multi-chamber
🔒
Multi-Point Lock
Steel reinforced
3 Finishes:
White
Black Grey
Brown
Lead-free ✓
Why Choose Us

Built for Indian Conditions, Crafted for Life

GBT profiles are engineered to withstand extreme heat, monsoon rains, and UV exposure — delivering year-round performance.

☀️

UV Resistant

Won't fade, crack or yellow even after years of direct sunlight.

🔒

Multi-Point Lock

Enhanced security with galvanized steel reinforcement.

🔇

Soundproof

Double glazing significantly reduces external noise levels.

❄️

Thermal Insulation

Multi-chamber design — cool in summer, warm in winter.

GBT
"Engineered for Performance — every profile, every time."
Manufactured in Ranchi, Jharkhand
✓
100% Lead-Free uPVC
✓
2.0–2.3mm Wall Thickness
✓
Co-Extrusion Technology
✓
25+ Year Life Expectancy
✓
Zero Maintenance Required
Our Product Range

Complete uPVC Solutions

From slim casement frames to wide sliding doors — a profile for every need.

🪟50 & 60 Series

Casement Windows

Out-swing and in-swing systems with muillion options for large openings.

Single GlazeDouble Glaze4–24mm
View Details →
🚪80 & 90 Series

Sliding Windows & Doors

Smooth double sash sliding systems with screen sash options for ventilation.

80mm Frame90mm FrameDouble Glass
View Details →
🏠112 Series

112mm Sliding Doors

Heavy-duty system for large residential and commercial openings.

112mm WideDouble GlassInterlock
View Details →
🏛️Casement Door

Casement Doors

60 Series in-swing casement doors with half-glass half-panel design.

Half GlassHalf Panel15mm Panel
View Details →
🔲Louver Series

Louver / Blind Windows

Ventilation-first design with angled louver blades for utility areas.

60 FrameBlind LouverVentilation
View Details →
✉️

Custom Solutions

Need a bespoke profile? Our team works with your requirements for unique projects.

Talk to Us →
Color Options

Three Stunning Finishes

Every GBT profile available in three carefully selected colorways to complement any architecture.

Classic White
Timeless & versatile
Black Grey
Bold & contemporary
Warm Brown
Natural wood-like
From Our Blog

Latest Articles

🪟Tips & Guides
Dec 10, 20245 min read

Why uPVC Windows Are the Best Choice for Indian Homes

Discover why uPVC profiles outperform aluminium and wood in India's harsh climate — heat, humidity, and monsoon tested.

Read More →
🔧Installation
Nov 28, 20247 min read

How to Choose the Right uPVC Profile Series for Your Project

From 50mm casement to 112mm sliding — a complete guide to picking the right series for any residential or commercial project.

Read More →
🎨Product News
Nov 5, 20244 min read

Co-Extrusion Colors: Why GBT's Finish Never Fades

Understanding the science behind co-extrusion technology and why it outperforms painted or laminated profiles every time.

Read More →

Ready to Transform Your Space?

Get a personalized quote from our experts — free site visit available in Jharkhand region.

Our Product Range

Complete uPVC profiles engineered for every application

Casement Windows

50 & 60 Casement Series

Perfect for residential and commercial spaces — available in single and double glazing.

🪟
50 Series

50mm Casement Window

Frame code 50PKK (0.845 kg/m), sash code 50WKCS (1.04 kg/m), muillion 50PKZT. 2.0mm wall thickness throughout.

50mmFrame Width
2.0mmThickness
5.8–6.0mLength
🔲
60 Series

60mm Out-Swing Casement

Frame code 60XK (0.88 kg/m). Supports 4–24mm double glass. Large frame option 60DK (1.167 kg/m).

60mmFrame Width
2.2mmThickness
5.9mLength
🚪
60 Door

60mm Casement Door

Half glass / half panel in-swing door. 150mm door panel code 150MB2 (0.884 kg/m). Bay corner adaptor 60ZJ1.

60mmFrame
15mmPanel Glass
5.9mLength

50 Series – Glazing Bead Specifications

Sl. NoGlass ThicknessGlazing Bead Code
014 / 5 / 6 mm (Single)50DY
0220 mm Double Glass50SY

60 Series – Glazing Bead Specifications

Sl. NoGlass ThicknessGlazing Bead Code
014 / 5 / 6 mm60DYA
0210 mm30YX
0320 mm Double Glass80DYA
0424 mm Double Glass88SYC
Sliding Windows & Doors

80, 90 & 112 Sliding Series

Effortless sliding action with precision interlock systems and screen sash options.

⇔
80 Sliding

80mm Double Sliding Window

Frame code 80LGKB (0.834 kg/m). Sash H: 80TLSH. Sash B: 80TLDSB. Interlock code 80GM. Supports 4–20mm glass.

80mmFrame
2.0mmThickness
4–20mmGlass
⬌
90 Sliding

90mm Double Sash Sliding

Frame code 90LGKA (1.098 kg/m). Extra-wide for panoramic views. 88-series sash options. Supports 4–24mm glass.

90mmFrame
2.2mmThickness
4–24mmGlass
🚪
112 Sliding

112mm Sliding Door

TLSG glass adaptor (code SG, 0.54 kg/m). Interlock code 42GM (0.307 kg/m). Supports 20–24mm double glass.

112mmFrame
2.2mmThickness
20–24mmGlass

90 Series – Glazing Bead Specifications

Sl. NoGlass ThicknessGlazing Bead Code
014/5/6 mm80DYA
0210 mm80DYB
0312 mm18YX
0415 mm88SYA
0520 mm88SYC
0624 mm80SYB2
Specialty Series

Louver Window Series

Designed for ventilation-first applications — utility areas, staircases, and service spaces.

🔲
Louver Series

Blind Louver Window

Profile code BYCLP (0.217 kg/m, 5.9m). Uses 60 PKD casement frame. 20 pcs/bag. Weight: 11.6 kg per 1×1m window.

40mmBlade Width
5.9mLength
11.6 kgPer 1m²
🌬️
Shutter Bead

Shutter Glazing Bead

Code BYCZYYT (0.26 kg/m). 48.5mm wide, 5.9m length. Compatible with 60 casement frame. 20 pcs/bag.

48.5mmWidth
0.26 kg/mWeight
20 pcsPer Bag
📐
Cutting Guide

Installation Formula

Standard cutting formulas for precise site assembly and minimal wastage on louver installations.

Frame: W+6 / H+6
Shutter Bead: W-98 / H-80
Blind Louver: W-98

Finishes

Available Color Variants

All GBT profiles available in three finishes via co-extrusion — color runs through the full profile thickness.

Classic White
Most popular
Black Grey
Modern & premium
Warm Brown
Earthy & elegant

Need Technical Specifications?

Download our full catalogue or speak to our technical team for custom sizing.

About GBT

Jharkhand's trusted uPVC profile manufacturer — built for life

Our Story

Green Build Technology — Purpose Built

GBT (Green Build Technology) was founded with a singular purpose: to bring world-class uPVC window and door profiles to the Indian construction market at accessible prices, without compromising on quality or performance.

Based in Ranchi, Jharkhand, we supply fabricators, contractors, architects, and homeowners across the region with a complete range of uPVC profiles — from slim 50mm casement systems to robust 112mm sliding door frames.

Our product range is engineered for Indian climatic conditions — the heat, humidity, and monsoons that test building materials to their limits.

50+
Profile configurations
6
Product series
3
Color finishes
100%
Lead-free uPVC
🏭

Manufacturing

Ranchi, Jharkhand

🌿

Green Tech

Eco-friendly profiles

⚙️

Precision

Engineered profiles

🏆

Performance

Built to last 25+ years

Technology

Profile Engineering

GBT profiles incorporate advanced manufacturing technologies for superior surface quality and structural integrity.

🔬

Co-Extrusion Technology

Color is co-extruded into the profile — not painted. Color will never peel, fade, or crack, even under prolonged UV exposure. Multiple surface finishes available.

📏

Precision Wall Thickness

Profiles maintain 2.0–2.3mm wall thickness across all series — exceeding industry minimums for structural integrity and 25+ year durability.

🔗

Interlock Systems

Precision-machined interlock profiles (80GM, 42GM) ensure weather-tight closure on sliding systems — keeping out water, dust, and drafts.

Registered Office

📍

Address

Plot No-515, Sub Plot No-515/B-4, Daladali,
Thana No-133, Thana-Ratu, Ranchi, Jharkhand.

📞

Phone / WhatsApp

+91 98765 43210

✉️

Email

info@gbtprofiles.com

📦

Supply Coverage

We supply fabricators and dealers across Jharkhand and neighboring states. Contact us for bulk pricing and distribution partnerships.

Our Blog

Tips, guides, and news from the world of uPVC windows & doors

🪟Tips & Guides
Dec 10, 20245 min read

Why uPVC Windows Are the Best Choice for Indian Homes

Discover why uPVC profiles outperform aluminium and wood in India's harsh climate — heat, humidity, and monsoon tested.

Read More →
🔧Installation
Nov 28, 20247 min read

How to Choose the Right uPVC Profile Series for Your Project

From 50mm casement to 112mm sliding — a complete guide to picking the right series for any project.

Read More →
🎨Product News
Nov 5, 20244 min read

Co-Extrusion Colors: Why GBT's Finish Never Fades

Understanding the science behind co-extrusion technology and why it outperforms painted profiles every time.

Read More →
🧹Maintenance
Oct 20, 20244 min read

Zero Maintenance Claims: The Truth About uPVC Profiles

We break down what "zero maintenance" really means for uPVC and what little care you should still take.

Read More →
🔇Tips & Guides
Oct 5, 20246 min read

Soundproofing Your Home with Double-Glazed uPVC Windows

How double glazing works, what decibel reduction to expect, and which GBT series offers the best acoustic performance.

Read More →
📐Installation
Sep 18, 20248 min read

Understanding Glazing Bead Codes: A Fabricator's Quick Reference

A practical guide to matching glazing bead codes — 60DYA, 88SYC, 80DYA and more — to the right glass thickness for each series.

Read More →

Resources

Catalogues, technical drawings, installation guides and more — all free to download

Downloads

Product Catalogues & Documents

Everything you need to specify, fabricate, and install GBT uPVC profiles — available as free PDF downloads.

📋

GBT Full Product Catalogue

Complete catalogue covering all 6 product series — casement, sliding, louver, and door profiles. Includes technical drawings and profile codes.

PDF2.4 MB · 15 pages
🪟

Casement Series Technical Drawings

Detailed technical drawings for 50 & 60 Casement series including all frame, sash, muillion, and glazing bead cross-sections.

PDF1.8 MB · 8 pages
🚪

Sliding Series Technical Drawings

Full technical drawings for 80, 90 & 112 Sliding series. Includes sash profiles, interlock components, and screen sash details.

PDF2.1 MB · 10 pages
🔲

Louver Series Guide

Technical guide for the Blind Louver / Venetian window series including cutting formulas, profile codes, and assembly instructions.

PDF0.9 MB · 4 pages
🔧

Installation Manual

Step-by-step installation manual covering wall preparation, frame fitting, sash installation, glazing, and sealing for all GBT series.

PDF3.2 MB · 22 pages
📊

Glazing Bead Quick Reference

One-page quick reference card for all glazing bead codes mapped to glass thickness and series. Ideal for fabricators and site supervisors.

PDF0.3 MB · 1 page
🎨

Color & Finish Sample Guide

Visual guide to GBT's three color options — Classic White, Black Grey, and Warm Brown — with co-extrusion surface finish options explained.

PDF1.2 MB · 6 pages
📐

Profile Weight & Specification Sheet

Comprehensive weight per meter (kg/m), length, pieces-per-bag, and wall thickness data for every profile code in the GBT range.

XLSX0.4 MB · Spreadsheet
📩

Need Something Specific?

Can't find what you're looking for? Our technical team can send custom drawings, cutlist formulas, or fabrication data directly to you.

Video Resources

How-To Videos

Watch our installation and product overview videos to get the most out of GBT profiles on your project.

▶
Casement Window Installation

Installing a 60 Series Casement Window

Step-by-step guide from wall prep to final glazing and sealing. Duration: 18 minutes.

▶
Sliding Door Track Setup

80 Series Sliding Window Assembly & Track Fitting

How to fit the bottom track, install sashes, and adjust the interlock. Duration: 22 minutes.

▶
GBT Product Overview

GBT uPVC Profile Range — Complete Overview

A walkthrough of all 6 product series with key specs, applications, and color options. Duration: 12 minutes.

▶
Glazing Bead Guide

Which Glazing Bead to Use — Codes Explained

Practical demo on selecting and fitting the correct glazing bead for different glass thicknesses. Duration: 9 minutes.

FAQ

Frequently Asked Questions

Are the downloads free? ▼
Can I request custom technical drawings? ▼
Are the technical drawings to scale? ▼

Get In Touch

Request a quote, ask a technical question, or become a GBT dealer

Request a Quote

✅ Thank you! We'll be in touch within 24 hours.
Contact Details

We're Here to Help You

Whether you're a fabricator, contractor, or homeowner — our team is ready to assist.

📍

Factory & Office

Plot No-515, Sub Plot No-515/B-4, Daladali,
Thana No-133, Thana-Ratu, Ranchi, Jharkhand.

📞

Phone / WhatsApp

+91 98765 43210

✉️

Email

info@gbtprofiles.com

🕐

Working Hours

Monday – Saturday: 9:00 AM – 6:00 PM
Sunday: Closed

🚚

Delivery

Profiles in 5.8–6.0m lengths. Dispatch from Ranchi to Jharkhand and neighboring states.